HTC One - Got wet - wont recieve any network signals

Hello All,

I dropped my phone in water and now it wont receive any signals.. It just doesnt detect my AT&T network.. sometimes i do see a couple of bars buit the moment I try making a call.. it disconnects and range goes away.

I dont see any other problems with the phone.. no issue with the screen or overall functioning..

Do you think I should send it over to HTC folks ? Any idea on range of how much they will charge?

Thanks!

Abs